柴水沟矿区土壤样品中微量金的不确定度评定  

Uncertainty Evaluation of Trace Gold in Soil Samples in Chaishuigou

作　　者：童永军 彭健 蒋成伍 李海明 

机构地区：[1]青海省柴达木综合地质矿产勘查院,青海省格尔木市昆仑南路12号816000

出　　处：《光谱实验室》2014年第5期606-609,共4页Chinese Journal of Spectroscopy Laboratory

摘　　要：针对电感耦合等离子体-质谱法（ICP-MS）测定土壤样品中微量金的实验过程，详细地分析了引入的不确定度来源。测定结果的不确定度由样品制备、曲线校准、样品均匀性和检验重复性3个部分引入的不确定度分量组成，求得测量结果的标准不确定度和扩展不确定度为0．79ng／g和1．58ng／g。This paper for inductively coupled plasma mass spectrometry （ICP-MS） was developed for the determination of trace gold in soil samples experimental process, analyzes the sources of uncertainty introduced in detail. The uncertainty of the determination results by the uniformity of the sample preparation, calibration curve, sample and test repeatability of three part of the introduction of the uncertainty components, measurement results obtained by the standard uncertainty and expanded uncertainty of 0.79 ng/g and 1.58 ng/g.

关 键 词：电感耦合等离子体-质谱法 土壤样 微量金 评定 

分 类 号：O657.63[理学—分析化学]